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https://issues.apache.org/jira/browse/FLINK-6162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15950223#comment-15950223
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ASF GitHub Bot commented on FLINK-6162:
---------------------------------------

Github user wenlong88 commented on the issue:

    https://github.com/apache/flink/pull/3595
  
    @greghogan Currently we check the position with the EndPosition which is 
the size of buffer instead of a max written size , so it is still possible to  
leave holes when keeping unmodified. Enabling auto extending can give the user 
the flexibility to reserved some space for later filling and does not change 
current functions logics.


> Fix bug in ByteArrayOutputStreamWithPos#setPosition
> ---------------------------------------------------
>
>                 Key: FLINK-6162
>                 URL: https://issues.apache.org/jira/browse/FLINK-6162
>             Project: Flink
>          Issue Type: Bug
>          Components: Core
>            Reporter: Wenlong Lyu
>            Assignee: Wenlong Lyu
>
> Currently the precondition check in setPosition will fail when the buffer is 
> full: 
> {{Preconditions.checkArgument(position < getEndPosition(), "Position out of 
> bounds.");}}
> We should allow the expected position to be the end position



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